Use SIP Link to link phone numbers from local carriers to Google Voice

This announcement was made at Google Cloud Next ‘22. Check out Next OnAir to tune into the livestream or watch session recordings following the event. Visit the Cloud Blog to learn more about the latest Google Workspace innovations for the ever-changing world of work. 

What’s changing 

For Google Voice Standard and Premier customers, admins can now connect a Session Initiation Protocol (SIP) trunk with Voice. This allows phone numbers (PSTN services) from local carriers to be used for Google Voice through a secure set of certified Session Border Controllers (SBCs), such as Audiocodes, Cisco, Oracle, and Ribbon. SIP Link makes it easier for our customers to leverage the power of Voice. 

In the coming weeks, this feature will be available for new and existing Voice customers in supported countries. Support for more countries will be added over the coming months — we will share more information here on the Workspace Updates Blog at that time. 

Who’s impacted

Admins and end users 

Why it’s important 

SIP Link provides flexible options depending on the needs of your organization — in addition to using any SIP trunk with Voice, you can: 
  • Configure multiple deployment options, including managing on-premise management of SBC infrastructure or outsourcing to the carrier or a third-party provider 
  • Configure SBC for interoperability between Voice and any customer-owned call control infrastructure 

Getting started 

Rollout pace 


  • Available with Voice Standard and Voice Premier licenses.